POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/isalpha.html}
-Gnulib module: ---
+Gnulib module: ctype
Portability problems fixed by Gnulib:
@itemize
+@item
+This function cannot be called from plain inline or extern inline functions
+on some platforms:
+OS X 10.8.
@end itemize
Portability problems not fixed by Gnulib: